443 Area Code
Maryland, USA
Local time now · Eastern Time
3:44 AM
Area code 443 is in Maryland, USA, serving Baltimore, Columbia and Annapolis. It uses Eastern Time — the time there now is 3:44 AM. 410 and 667 are overlays for the same area, so local calls need 10-digit dialing. In service since 1997.
| Area code | 443 |
|---|---|
| Location | Maryland, USA |
| Major cities | Baltimore, Columbia, Annapolis |
| Time zone | Eastern Time |
| Overlay codes | 410, 667 |
| In service since | 1997 |
| Dialing | 1+10 digit permissible at service provider discretion. |
Other area codes in Maryland
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Frequently asked questions
Where is area code 443?
Maryland, USA — including Baltimore, Columbia and Annapolis.
What time zone is area code 443?
Eastern Time.
How do I call a 443 number from abroad?
Dial your international access code, then 1 (the country code), then 443 and the 7-digit number — for example +1 443 555 0100. From the UK or India dial 00 1 443 …; from Bangladesh 00 1 443 … .
Is a call from 443 a scam?
Not by itself — 443 is an ordinary geographic area code in Maryland. Numbers can be spoofed, so be careful with unexpected calls asking for money or personal details.
Sources: North American Numbering Plan Administrator (NANPA) NPA database (10/25/2026); major cities from Wikidata (CC0). An area code shows where a number was first assigned — with number portability and mobile phones, the caller may be anywhere.